The loss ended the duo's quest for a title repeat after winning the title last year over Arizona State's pair of Mhari Brown and Allison Bradshaw, 9-8.
In singles play, Gough dropped her finals match to the third seeded Jewel Peterson of Southern California, 6-4, 6-3.
By advancing to the final match, Gough earned an automatic berth to the 2001 Rolex National Intercollegiate Indoor Championships, Feb. 1-4, at the Brookhaven Country Club in Dallas.
The Wildcats return to action Jan. 11-14, when they travel to Seattle for the Pac-10 Indoor Championships.
Jewel Peterson (USC) def. Michelle Gough (UA), 6-4, 6-3
Ipek Senoglu/Paola Palencia (Pepperdine) def. Gough/Lindsay Blau (UA), 8-4